
Originally Posted by
chris210
I would stay away from the "bearing down" and coughing when you feel like your heart rate is a little high. This is what's called a valsalva manuever and is the first treatment (before adenocard) used to treat PSVT (paroxysmal supraventricular tachycardia). It works by stimulating your body to release acetelcholine which is a parasypathetic neurotransmitter.
Anyway, PSVT will not be your culprit if you are talking about a heart rate of 100 bpm. By definition, PSVT is a any rate above 160 that originates from a single pacemaker site.
Also, the VM's can sometimes cause sycope (passing out) in older med (don't know your age) and might serve to actualy potentiate your problem.
Prolonged tachycardia can sometimes be a compensatory mechanism for an underlying problem, especialy if you are in pretty good cardio shape. (I'm assuming you are)
Go see your Doc, and be straight about your juice.